Another fern frond from the Pennsylvanian Period. Collected from the Llewellyn Formation, St. Clair County, Pennsylvania.

Cimolichthys, jaw

This is the partial jaw of the Cretaceous fish Cimolichthys. I collected the jaw 2 miles north west of Smith Center, Kansas.

Fusulina

Fusulinae are marine invertebrates that have a shell similar to a grain of rice. The genus Fusulina is a guide fossil for sediment relating to the Upper Carboniferous. When large numbers concentrate "fusulinid limestone" results. This sample was collected about 5 miles southeast of Tecumseh, Nebraska.